Hand Tools

Subject:
Re: Cap iron setback and shaving thickness

Patrick Chase
It's 5.4.

I initially measured 5.7 in a 1X magnification image, but then discovered that this particular lens' "1X" isn't exactly as specified. I then reshot with a scale in the image and remeasured at 5.4.

As I said in my writeup, I view these results as ambiguous. The planing forces certainly start to increase significantly as the cap iron approaches the sole, so as you say there is a question of practicality here. With infinite force (i.e. a supershaper or the Kato/Kawai setup) I'm sure that I could get good results with the cap iron edge significantly below the sole, but as you've said in the past that isn't particularly relevant to hand planing.

The thing that gives me pause is that cap iron placement and lateral tilt are not exact. Even at 3.5 mil shaving thickness (which worked well) the cap iron is less than a mil from the sole, so it wouldn't take much tilt at all to get into trouble at one of the corners. I therefore think that a reasonable argument can be made for profiling the cap iron, not because it's a good idea to set the cap iron nominally below the sole, but instead to add tolerance when setting it nominally close to the sole.

That's really all I need to know to conclude that Nicholson isn't out in the weeds here, to be honest. It's probably worth noting that in borderline cases like this it's entirely normal to find that different people have worked their way to different (and ~equally valid) solutions.

Messages In This Thread

Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Redoing the test
Re: Redoing the test
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
If you're a beginner...
Re: Cap iron setback and shaving thickness
Re: And a quote....
Re: Radius of cambered blade - some #'s *LINK*
Re: Radius of cambered blade - some #'s
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: The other issue...
Re: The other issue...
Re: The other issue...
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Contrariness
Re: Contrariness
Kato and Kawai
Re: Kato and Kawai
Remarkable restraint
Re: Remarkable restraint
Re: Remarkable restraint
Re: Remarkable restraint
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Not really lighting it up
Correction
Re: Correction
Re: Correction *LINK*
Re: Correction
Re: Correction
Re: Correction
Re: Correction
Re: Correction
Re: Correction
This seems pointless
Re: This seems pointless
Maguire
Re: McGuire
The Virtue
Re: Maguire
Re: Maguire
Re: Maguire
Re: Maguire
Re: This seems pointless
Re: This seems pointless
"Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
My apologies
Re: Burr and Hardness
Re: Burr and Hardness
Re: Burr and Hardness
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
The big difference
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: "Planecraft"
Re: This seems pointless
Re: Correction
Re: Correction
Re: Correction
Re: Correction
Re: Correction *LINK*
Re: The most likely
Re: The most likely
Jupiter Cakes
Re: Jupiter Cakes
Re: The most likely
Re: The most likely
Re: The most likely
Re: Correction
Re: Correction
Re: Correction
Re: Correction
Re: Correction *LINK*
Re: YMMV
Re: YMMV
Re: YMMV
Re: Correction
No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Set-back distance and measurebation
Re: Set-back distance and measurebation
swingley thread
Blackburn
Re: Blackburn
Andrew Hunter
Japanese planes
Re: Japanese planes
Re: Japanese planes
Re: Japanese planes
Re: Blackburn
Re: No tear stained defense needed..
Cap iron sharpening
Re: Cap iron sharpening
Re: Cap iron sharpening
Re: Cap iron sharpening
Re: Worn Through
Re: Worn Through
Re:cap iron sharpness and maintenance
Re:cap iron sharpness and maintenance
Re:cap iron sharpness and maintenance
Pictures *PIC*
Cap iron sharpness
Re: Cap iron sharpness
Re: Pictures
Re: Pictures
Re: Pictures
Re: Cap iron sharpening *LINK*
Re: Cap iron sharpening
Cut depth, species, and wear
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Re: No tear stained defense needed..
Simple concept, easy 'splanation
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Tried this again today
Re: Tried this again today
Re: Tried this again today
Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Double Iron vs. Thick Iron
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
Re: Cap iron setback and shaving thickness
planing
Re: planing
Re: planing
Re: planing
Re: planing
Consumables vs skilled labor
Actually, you've fed right into..
Re: Consumables vs skilled labor
Re: Consumables vs skilled labor
Re: Good Work
Re: planing
Re: Cap iron setback and shaving thickness
I knew *PIC*
Re: I recall
By the way, Mark..
Re: By the way, Mark..
Re: By the way, Mark..
© 1998 - 2017 by Ellis Walentine. All rights reserved.
No parts of this web site may be reproduced in any form or by
any means without the written permission of the publisher.

WOODCENTRAL, P.O. BOX 493, SPRINGTOWN, PA 18081